# NousResearch/hermes-agent · Fix dropped/blocked concurrent plugin hook invocations

## Open now

- Nothing open on GitHub.

These items address a bug where parallel calls to the same plugin hook were incorrectly dropped or blocked, treating healthy concurrent invocations as if they had timed out. The fixes involve serializing overlapping callbacks and scoping gate keys more precisely to allow legitimate concurrent calls.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #111177. Verify it addresses your case.
- **Recommended:** read PR #111177 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-111177`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #98382: Concurrent observer-hook invocations are dropped as if a callback had timed out

## Prior & competing PRs

- **#111177: Plugin hook gate keys on the call, so parallel same-tool calls are no longer blocked (#98382, salvage #110470)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/turn_finalizer.py`, `contributors/emails/deadczarvc@users.noreply.github.com`, `hermes_cli/plugins.py`, `hermes_cli/plugins_dispatch.py`, `hermes_cli/plugins_ledger.py`, `tests/hermes_cli/test_plugins.py`, `tools/terminal_tool_result.py`
- **#98385: fix(plugins): don't drop healthy concurrent fail-open hook invocations**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `73f808e47f`, `#111177`, `#110470`
- **#104763: fix(plugins): serialize overlapping hook callback fires instead of dropping**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `75e9567ca7`, `#118844`

## Fix status

- Merged to main in PR #111177 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-15`.